Beverage dispenser



July 5, 1932. F A MADDEN 1,865,773

BEVERAGE DISPENSER Filed'OGt. 26. 192s `8 sheets-sheet 2 NVE/vraie July5; l1932- l F. A. MADDEN l 1,865,773

. BEVERAGE DISPENSER July 5, 1932.l F. A MADDEN I .1,865,773

BEVERAGE DISPENSER IVVENTR IWT/V555 I I [WMA-MEN www@ m July 5,1932.- F.A. MADDEN 1,865,773

BEVERAGE DISPENSER l Filed Oct. 26. 1925 8 Sheets-Sugoi, 5

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July 5, 1932. F. A, MADpEN `1,8(:5,773

BEVERAGE DISPENSER Filed OGL 26. 1925 8 sheets-smet 'r July 5, 1932.

F. A; MADDEN BEVERAGE DI S PENSER Filed Oct. 26. 1925 SSheets-'Sheet 8.n 92 l Hee/VHA. ma/sw @ax/m5,

q NPatented July 5, 1,932

PATENT oFFlcE FRANK A. IADDEN, F LOS ANGELES, CALIFORNIA BEVERAGEDISPENSER E Application illed qctober 28, 1925. Serial No. 84,735.

and then mixed together in a container, theb tendencyof such liquids isto foam; and the amount of foam in the successive drinks d1s pensed,varies according to the gas pressure 1n the efervescing liquid used.

` An object of this invention 1s to provide a machine of this characterthat will dispensev to a liquid container a requisite amount of liquidswith due 're ard to the variations of4 pressure under which such liquidsma be delivered, so that each charge of liqui delivered to thecontainer, will, without exception, approximately fill the container toa predetermined level.

Another object is to make provision whereby the liquid deliverymechanism may be adjusted so that the liquid delivered to the Acontainerwill invariably be in such quantity as to practically ll the cup withoutoverflowing.

A feature of this invention is a construction and arran ement ofmeasuring mechanism which will be governed by gas pressure from thecarbonated water to deliver a less amount of such water under high gaspressure than under lower gas pressures and 5 yet fill the containerswhen the water is not so highly charged With gas.

With this device Athe amount of carbonated water delivered will begradually increased as the gas pressure therein lowers so that thecombined liquid, syrup and foam will at each operation just ill thecontainer.

I have discovered that it is practicable to combine the forces ofgravity, atmospheric pressure and the pressure of gas from theeffervescent liquid to accurately measure and deliver a predeterminedcharge of syrup, and

to employ the buoyant force of the e'erves- I,

cent liquid in conjunction with the abovementioned forces to measure theelfervescent liquid and discharge it with the syrup, into a cup.-

I havediscovered that by filling with syrup a chamber that has an outletat the top, and applying gas from an efervescing liquid while theeiervescing lliquid is being discharged from its container into ameasuring chamber, the syrup may be Jforced out of the syrup chamber inexact quantity and that the etiervescing liquid discharged into themeasuring chamber therefor, may be so measured that the liquids and foamwill when delivered to a cup, always practically iillffthe cup; therebein a larger discharge of the liquid, and less 0am, when pressure ofgas in the eil'ervescing liquid is low, than .when it is high.

An object of the invention is to serve full cups without overflowirrespective of the variationsof gas .pressure in the efervescingliquid.

In this invention I provide a pressure chamber having at the top a vent,and at the bottom a valved outlet, and connect the chamber through aninlet valve with a pres! sure tankI containing carbonated water or othereifervescent liquid under pressure; and I provide a ioat in the chamberto close Vthe vent when the eiervescent liquid from the tank fills thechamber to a predetermined level, and also provide means adapted andarranged to be operated by the pressure in the pressure chamber when thevent and outlets are closed, to cause the inlet valve of said chamber tobe closed andthe outlet valve to be o ened; and I also provide a pumpoperable y the -pressure in the pressure chamber to supply syrup orother quiescent liquid for mixture with the eervescent liquid when thesame is discharged from the chamber.

In this invention I provide novel means whereby the vending operation ofthe machine is started manually and the force thus applied gives tensiontc spring means that continues the operation automatically and returnsthe automatically operated parts to initial or normal'position.

An object of the invention is to provide a novel vendin machine of thischaracter in v which a sing ek manual operation, will first place a cupin position to be filled and made available for use, and second, willproperly measure a syrup and eervescent llquid to mix a drink anddeliver such syrup and liquid to the available cup without overiiowingthe cup.

I have rovided a cup and beverage machine whic may be used as asemi-automatic vendin machine for saving the time of softdrink ispensingclerks.

A -feature of this invention is that at each operation of the machine,an amount of liquid under pressure is dis ensed into a cup that is-madeaccessible to t e operator and 1s uniformlyv filled, responsive to thevariations of gas pressure in the liquid delivered.

The invention .is broadly new, basic and pioneer in that the machine isonly started mto operation b a redetermined movement of a hand cranwliich'may be at once returned to initial position while the drink isybeing delivered and mixed; and the crankl is then free to be operated,or left at rest.

In this invention provision is made whereby the crank may be freelyoscillated after any operation of the machine, without again operatingthe machine, unless connection between the crank and the o eratingmechanism is made by an inserted) member which is displaced from itsoperative position when the crank passes a certain position, and suchinserted member is then displaced positively by r1spring actuated means.

e connecting element may bea coin and a further feature consists inmeans to bar admission of a coin, except when the hand crank is ininitial or normal non-operative position.

An object is to kee the machine from be comin untidy througaccumulations of drip from t e discharged drink. l

An object is to positively discharge the coin into the receptacletherefor when it has served its purpose of forming a suitableconnectio-n to set the vending machine in motion.

feature of the invention is the employment of the ,coin to tension aspring the force of which serves to knock the coin out of its carrierbefore the vending mechanism delivers a cup or-a drink.

Another object is to retain the coin in ope" ative position untiltlievending mechanism has been started into operation.

Objects are to avoid dependance upon the .weight or the impact of eitherliquid er upon any lever or levers or other mechanism actuated hy suchweight or impact to determine any operation of the machine; and toutilize a ioat valve lifted by the eii'ervescent liquid charge to closethe gas vent; and tothen utilize the pressure in the pressure chamber todischarge the syrup and to release the valve that controls the flow ofefervescent liquid u from the drum or tank to the pressure cham ber andto open a valve to permit the flow of such efervescent liquid from thepressure chamber; and in carrying out the invention I provide a syrupfountain so connected with the syrup measuring chamber as to normallkeep such chamber nearly full without bac pressure, so that the work ofdischarging the char e is minimized, and leakage is avoided.

Ot er objects, advantages and features of invention mayappear from theaccompanying drawings, the sub'oined detailed description and theappende claims.

The invention includes the cup and drink vending machine and the partsand combinations o described, and claimed.

parts hereinafter more particularly.

The principle of the invention may-be carinvention in the form deemedmost desirable.

Figure 1 is a broken front. elevation of a dispensing machineconstructed in accordance with this invention with a filled cup readyfor delivery and the crank returned to osition for starting anotheroperation.

roken lines indicate the position of the cra-nk at the coin dislod inginstant.

Fig. 2 is a broken si e elevation of the machine looking from the leftin Fig. 1 and showing a fragment of the case. A portion of one side wallof the` frame is broken to expose the cup passa e; broken lines indicate`mechanism outsi e the other wall.

Fig. 3 is a plan of one of the three cupfeeding disks.

Fig. 4 is anv elevation of the rear cup-feeding disk.

Fig 5 is an elevation of one of the front cu eeding disks. v

ig. 6 is a side elevation looking from the ri ht in Fig. 1.

ig. 7 is a sectional view1 on line ai?, Figs. (i and 8, showing in planthe cam wheel and its ratchet.

Fig. 8 is an enlarged frsg'meutal view sho-wing a detail enge elevationof the cam wheel and its connections.

Fig. 3 is s ragmentai detail viewed from mii, 7 and showing the ratchet.

Fior. l0 is a. sectional View taken on irregular -ine fold-m6, iigs. l,il and. 1752, ornittins; the pressure liquid l ipe and other parts.

10a an enlarge. fraginental detail in vertical axial section, of? coinhoiding 'tension crank, the crank controlled coin-slot guard, thecup-retracted coin-slot guard, and a cup holding. the cup-retractedguard, retracted. Dotted lines indicate the position of the cupretractedguard when the cup supply is eX- hausted. A modified form of crank isshown.

Fig. 14 is a fragmental front elevation showing the crank and the crankcontrolled coin-slot guard, and a fragment of the cupcontrolledcoin-slot guard; the frame is broken to show the crank cam and the coincarrier; solid lines show the crank at rest and the crank controlledcoin-slot guard withdrawn; broken lines indicate the crank started toturn, and the crank controlled coin-slotguard in slot guarding position.

Fig. 15 is a fragmentary elevation partly in section to illustrate thedevice for discharging the eil'ervescing liquid such as carbonated wateror other pressure liquid; broken lines indicate the position of partsfor 'releasing the pressure valve.

Fig. 15a is a horizontal section on line w15a, Fig. 15. A

Fig. 15b is an enlarged fragmental detail of the pressure liquiddelivery valve in SeC- t'ion on line $156, Fig. 15.

Fig. 150 is a fragmental elevation of the cylinder headfshowing thepressure liquid inlet valve andthe means for operating said p valve.

y Fig. 16 is a plan view of the cup dispenser. Fig. 17 is an elevationshowing the left side of the cup `dispenser shown in Fig. 16.

Fig. 18 is a View looking up at the bottom of the cup dispensermechanism shown in Fi s. 16 and 17.

ig. 19 is a fragmentary vertical section on line w19, Fig. 20. Brokenlines indicate the position of parts the moment before the knock-outtappet is sprung to eject the coin from the coin carrier.

Fig. 20 is a Afragmentary vertical section on line :p20-w20, Figs. 1 and19.

Fig. 21 is a fragmentary right side elevation of the forward end of themachine; parts are broken away to show interior construction.

Fig. 22 is a fragmentary rear elevation of the forward end of themachine, looking from the right side of Fig. 21, and from a planeindicated by line w22 in Fig. 10.

l Fig. 23 is a broken plan view of the frame of the measuring deviceomitting the cover and movable parts, and tracing the passagestherethrough for the pressure fluid and syrup. f Fig. 24 is a verticalsection on line indicated at w24-w25, Fig. 23, looking in the directionof the arrow at m24 with the cover and movable parts in place.

Fig. 25 is a vertical section on line 24- m25, Fig. 23 looking inthedirection of the arrow at w25, with the cover and movable parts inplace.

' Fig. 26 is a vertical section online w26- m26, Fig. 23, with movableparts in place, but omitting the valve unlocking rod and part of the armfor operating it.

Fig` 27 is a. fragmentary side elevation part-V ly in section showingthe spring mounting for closing the pressure valve.

Fig. 28 is a fragmentary side elevation of the same, looking in thedirection of the circle arrow 28, in Fig. 25.

It is intended that in common use the machine a will preferably behoused in a cabinet K, not necessary to be shown herein, and that onlypart of the front of the machine will be exposed to view, while theremainder of the machine is covered by the cabinet to revent tamperingwith or injury to the mac ne proper.

For the purposes of this description it will be assumed that the drinkto be vended shall consist of two components.; viz., a syrup spacedapart and secured to said base and top by cap screws 3a, 3b.

The base casting 1 is provided with a recess 4, which is open at thefront side and has a horizontal U-shaped forwardly open lip 4a on whichthe cup in which the drink is to be vended is hung to receive the drink.

A cup 5 and spout 5 to take care of any drip, and a chute 5 throughwhich to drop the used cups, lead from the frame 1.

to suitable receptacles not shown.

The casting 1 is also formed with a vertical passage 6 opening down tothe recess 4, and through which the cups are delivered one at a timefrom a magazine above tothe lip 4a, by cup dispensing means, when themachine is operated to vend the drink.

The manually operated actuating mechanism comprises a hand crank 7 fixedto a horizontal shaft 8 that is journalled in a rib 1a at one side ofthe base castipg 1 and projects from the rear facevthereof, and that isthere provided with a coin carrier 9 rigidly fixedv to the crank shaft 8by a pin 8 and -to a bearing 10 that extends to a rib 11 of the frame.

12 is a coin slot open to the front of the frame and of just the crosssection to receive and conduct a coin of the denomination required topay for one of the drinks to be vended.

The coin carrier 9 is preferably U-shaped and the open space 9 betweenthe limbs of the U is of less width than the coin slot '12.

-In the inside faces of the limbs of the U,

ooves 12 are cut to continue the coin slot ownward, and -these groovesare. adapted at their lower ends to unitedly form a coin seat 9a to seata coin 13 to bridge 'the open space between the limbs ofthe U to bearagainst and operate a lug 14 and retract a tappet 14 when the crank 7 isturned for the purpose of operatingthe ven 1.ing mecha- The lug 14 andtappet 14 are fixed to, and extend on opposite sides of, a transmittinshaft 15 that is journalled in both limbs o the carrier 9, and also inthe bearing 10 and in the rib 11.

A coil spring S is arranged to yieldingly hold the coin carrier againstthe outside of the frame member 1 `in osition to receive from the coinslot 12 a com 13 to bri e the ace 9 and operate the lug 14 to turn the saft 15, to which the lug 14 is fixed by pin 15.

Said slot l2 is formed in the frame member 1, and extends from the frontface of said member to deliver a coin into the coin seat 9a in the coincarrier when said carrier and other parts of the machine are in coinreceivin position. f

en there is no coin in the coin seat 9a the crank 7 ymay be oscillatedalmost throughout one revolution and the carrier stops against the frameat each end of its arc of travel.

The spring S returns the carrier with considerable force to its sto onthe outside of the frame, and there is likely to be more or lessbatterin of the frame or the carrier, thus misalining the seat withreference to the slot, and to correct this diiculty adjust-able stoplugs 16 in the form of screws are threaded through the carrier to engagethe frame so that when the contacting surfaces become battered the coinseat may be again alined with the slot by screwing the stops furtherthrough the carrier, thus to cause the carrier to stop in position toreceive the coin from the coin slot.

When the coin slot 12 is unobstructed and a coin of required size isdropped thereinto such coin passes down into the coin seat 9a and thenupon oscillation of the crank, the coin engages and swings the lug 14around, thus transmitting motion to the shaft 15, thereby revolving abevel gear 17 which is fixed on the inner end of the shaft 15.

The bevel gear 17, meshes with a gear 18 fixed to a vertical shaft 19,which is journalled at the rear of the base member 1 in ears 20,projecting from said member, and is connected to operate the cupdelivering mechanism detailed in Figs. 16, 17, 18, 21 and 22.

A gear 21 meshes with the gear 18 and is fixed to one section 22 of ahorizontal shaft which is formed of two torsionally connected sections22, 22. A revolvable member in the form of a cam wheel 23 is fixed tothe section 22 and is arranged and connected to close the pressureliquid outlet valve'and open the pressure liquid inlet valve and tocomplete the operation of the cup delivering mechanisms.

The lug and tappet 14 and 14', vertical shaft 19, the cup deliveringmeans, and the cam wheel 23 are thus connected for coordinate operation.

A master spring preferably formed of two coils as at 27, eccentricallyconnected by crank pin 27 to the revolvable member 23 holds the camwheel 23 normally in a predetermined position, andthe operation of thelu 14 by the coin is a ainst the resistance of sai master sprin an suchresistance affords a friction on t e vcoin that tends to hold the coinin the coin seat while operatino` the lug. The coin enters the coin seatfrom a ove, and when the coin carrier is revolved suiciently to invertthe coin seat, the coin would drop out if it were not for the frictioncaused by the resistance of spring 27, which is given tension byrevolutlon of the cam 23' and when the cam crank pin 27, by which themaster spring 27 is ecc'entrically connected to the cam 23, comes'todead-center asthe spring swings across the axis of the cam, theresistance of the master spring to the advance of the lu under thepressure of the coin carried by t e coin carrier is so reduced that thefriction on the coin would be insuiiicient to uphold the coin, andthecoin would drop out of vthe inverted coin carrier, thus leaving noconnection between the coin carrier and the cam 23, so that theoperation of the machine would notbe carried on.

To overcome this diiiiculty, the cam operating shaft is made in the twoalined sections 22 and 22 and these sections are connected to each otherby a torsion coupling comprising an intermediate spring 22a the ends ofwhich are fixed to the sections 22, 22',

resgiectively, by means of sleeves 2225 and 22o.

aid intermediate spring 22a is of such strength that when it i's putunder tension by the resistance of spring 27 as it approaches .the deadcenter position, the reaction of such spring against the lug issufficient not only to frictionally hold the coin until the dead centerposition is reached, but also to suddenly thrust the cam wheel onwardafter the spring passes the dead center; and the moment the spring27'passes such dead center, it is operative to instantly turn therevolvable member or cam 23 to normal or initial position where it comesto rest and is held in such initial position by the tension ofthespring27.

The intermediate spring 22a is so adjusted by means of said screw d inthe collar e on the coupling sleeve 226 which is fixed by pin f to theshaft member 22 that the tension of spring 22a will be suiiicient toaccomplish the results above set forth. The cam 23 when returned tonormal position also returns the gears 21, 18 and 17 to-a pre-determinednor- 23 by spring 27 revolves shaft 15 and moves the tap et 14 againstthe coin to positively knock t e released coin ont of the coin seat inthe event the coin has not previously fallen therefrom by gravity.

The shaft member 22 is journalled at one l end in a block 24, and theother member 22 is j ournalled in a bearing 25 depending from a casting26 secured to the bottom ofthe casting 2.

The spring 27 secured to the eccentric cam pin 27 on the cam wheel 23and to the frame, yieldingly holds said wheel 23 and its connections atthe rest position, and it not only operates the tappet to eject thecoin, but also operates means to dispense cups to receive the drinks.

The crank is only oscillatable and stops s'hort of acomplete revolution,as indicated in Figs. 1 and 19; and the gears 17, 18, 21 are so arrangedthat the cam wheel 23 can be turned to a point somewhat more than 180from rest'by operation of said crank and before the crank reaches thelimit of its movement the cam wheel and the tappet are automaticallycaused by reaction of spring 27 to complete a full revolution and returnto rest and to perfect thevvendi'ng of the cup and drink.

Thecup dispensing device comprises a magazine 28 mounted on andstationary to the casting 1 and havin a circular cup-way 29 above andaxially ai ed with the passage 6, and having a amfered internalflange'30 below which thin'mutilatedworm rimmed or perilpsherallythreaded revolvable cup feeding dis 31, are arranged to support a stackofvnested cups C in the magazine. Said disks are mounted on shafts 32and 32 and are arranged to be revolved relative to` the magazine. Theyare arranged with their `spiral peripheries projecting into the cupway29 to unitedly support the rim fiange of the lowermost cup at one partof the revolution and the spiral peripheral grooves in. said disks areadapted to receive the rim flange of the lowermost cup and move such rimdown and thus cause the cup to drop into the vertical passage V6 whenthe disks are turned tothe appropriate-position for supportin the nextcup rim.

Pre erably there are three of such vdisks symmetrically disposed, asshown, andin fixed relation to respective operating gears.

A gear 33 and its disk 31 are in fixed relation to shaft 32, andthe gear33 meshes with an annular gear 34, which is journalled on a dependingcollar. 35 on the fiange 30 and is initially revolved by power appliedthrough the hand crank 7. Disk gears 36 and 37 are fixed to the otherdisks and mesh with the ring or annular gear 34 to be revolved thereby;so that all three disks revolve alike when the shaft 32 is revolved.

As shown in Fig. 12, the cups C have flanged rims b' and are nested onewithin another in the chamfered fiange 30, with the fiange b of thebottom cup resting on the disks 31. As these disks rotate, theirthreaded peripheries receive and engage the flange b of the bottom cupand move it down until the cup drops through the passage and rests onthe lip 4a in the recess 4, ready to receive liquid from the outlet 38as will be Ahei'einthrough a train of gears comprising gear 39- fixed toshaft 19, and meshed with gear 40 that is fixed to shaft 41, to` which1s fixed gear 42 that is meshed with gear 43, fixed to shaft 32 whichturns gear 33 that revolves annular gear 34, by which the disk gears 36and 37 are revolved. When the crank is turned,-With coin in place, theshafts 19 and 41 will be turned, and also the gear 43 and thus revolvethe annular gear 34, and the disks 31 will be simultaneously rotated todispense a cup. The cam wheel 23 on shaft member 22 is turned through anare to stretch the spring 27 which instantlycompletes the revolution ofthe shaft 22, when the spring passes dead center.

A counter 44 is operatively connected to one ofthe shafts 32';and'records the number of cu s dispensed by the machine, and therefore te number of times it is operated.

- Means are provided to prevent the insertion of a coin when the supplyof cups is exhausted, and such means comprise a spring actuated coinstop operatin arm 45 that is pivoted intermediate its en s at 45 and isprovided at one end with a part, as finger 46 constructed and arrangedto be pressed against the rim of a disk supported cup by aspring 47 thattends to insert a stop 48 mounted at Vthe other end of arm 45 into thecoin slot 12 eta point close to the front 'of the frame so that when thestop is in the draw t e finger from lthe cups during the operation ofdispensing a cup, and this is effected'by a pin 49 normally retracted bya spring 51, and adapted to be inserted into slot 12 through a hole, andinto engagement with the stop 48 to push said stop back to oscillate arm45 and retract the finger 46 from the cup; a lever 52 fulcrumed to theframe at 53 is voperable by a cam 54 fixed to the crank-shaft 8, to pushthe pin 50 into the finger retracting position after a coin has beendropped into the coin carrier, and directly after the crank 7 .has beenmoved to turn the coin carrier and the cup dispensing device` When thepin 50 has been moved into engagement with the stop 48 it has kpassedtransversely through the coin slot 12 so that another coin cannot beinserted in said slot and also provides a means for requiring the handle7 to be in initial position when a coin is inserted and thereby assurescorrect positioning of the coin carrier relative to the. slot 12 whenthe coin is inserted.

The cam 54 extends around the axis of the shaft 8 sufficiently to holdthe. lever 52 and pin in finger retracting position throughout allexcept a limite initial are of the crank oscillation, so that While thecup feeding disks 31 are lowering the cup, the finger 46 is heldretracted from the path of the projecting cup rini, but when the crankis returned to its initial position shown in solid lines in Figs. 1 and14, the-spring 4'? again presses the finger 46 against a cup, the stop48 is Withdrawn from the coin slot soloug as cups are in the cupreceptaclee and n" the cam 54 is withdrawn from the lever the spring 51withdraws the p in the coin slot 12 leaving said slot 'fito -or theinsertion of another coin.

The drink measuring and dispensing mechanism is contained in andsupported by a hollow casting 55 having a coverpiate 56s and which issecured to the top member 2 of the machine frame, and the. top of whichforms a bottom for said hollow casting.

A fountain or tray 57 is provided on the casting 2,-and a jar 58 isinverted thereon, and may contain a.liquid syrup, iavoring or similarsubstance to be mixed with another liquid or li uids. A tube 59 leadsfrom the tray 57, an is secured to the cast-ing by screws threaded intoflanges 60, and seid f opens into an intake vf 61 opens into a measuringchamber L inder 62 through e. passage at t,... o of said chamber andcylinder and the it. cylinder communicates with an cutie., chainber 64through a duct 65 and port 65" adje cent the top of said outlet chamberhas an outlet at its bottom through lioie 66 that alnes with a tube 67formed in the caso ing 26. A vent 68 at the top of chamber 64 admits airto prevent syphoning of liquid from the jar 58.

A rod 69 having a valve 70 thereon extends through the castings 26 and2, and has at its lower end an anti-friction roller 69 that rests on thecam wheel 23 to ride the cam and be raised thereby while the wheel isrotated part way or during the spring tensioning portion of itsrevolution; and to cause the valve 70 to temporarily close thepassage71, which leads from the bottom of a pressure and float chamber 72 intothe expansion chamber '71 in the casting 26. Near the top of vits upwardstroke and after the valve 70 is seated and the cam 28 is moving duringthe spring retracting portion of its revolution, the valve4 stem 69lifts a valve stem 78, and unseats a pressure liquid inlet valve 74, andpermits the pressure'luid to low from the tting 75 through the cage 76and slot 76 into the chamber 72, While the outlet 71 is closed by valve7 O.

A pressure tank or drum 78 containing eiiervescent pressure liquidsuch-as carbonated Water, is connected to the litting by a suitable pipe79, so that when valve 74 is opened the chamber 72 is supplied with. acharge of pressure liquid.

' A spring 77 around the stem 73 tends to normally seat the valve 74.The outlet passage 71 from the pressure chamber 72 must remain closedwhile the pressure duid is filling said chamber and until the liquidlifts the float 80 therein and a stem 81 fixed thereto until said floatcloses a vent hole 81 in the :over 56 and until sufficient pressure isobtained in the pressure chamber to operate the syrup dispensingmechanism as will be more fully hereinafter described. Said stem 81extends through the hole 81 in the cover and is guided by said cover andby a spider 82 in the bottoni of chamber 72. The float 8G has a slightmovement to cause a valve 83 on the upper end of the lioat to close andopen the vent at the hole 81', which communi,- Cates with diverging ventholes to allovv free escape of gas until the float 8G and the vent valve83 are lifted by the pressure liquid to close the vent when the pressurechamber.

72 has received the required charge of eifervescent liquid.

Jam-n uts85 screwed onto the float stem 81 are adapted to normally reston cover 56 and to support the fioat close to the top of the chamber 72,so that only a slight lifting of the iioat is required to cause thevalve 83 to close the vent holes 84.

t yThe chambered body formed ci' the casting 55 is provided with a` bore86 threaded receive a nipple 86 and adapted receive fie valve seatbushing 87 having at its upper end the cage 76, and provided with out-"os 87; and the valve stem 73 extends down through the cage 76 andbushing 87, which is provided with a gland 87 that is shouldered Ill) 'spout 38 wit sucient velocity to .shoot over. into the cup C, but thespout terminates suflil to receive the thrust of the spring 77, whichoperates between the shoulder of the gland 87 and the collar 73 fixed tothe valve stem 73.

When the valve 74 is opened, the efervescing liquid from the drum 78flows through the slot 76 into the float chamber 72 until shortly afterthe float 80 is raised suiliciently to cause the valve 83 to close thevent holes 84; and the pressure in the pressure chamber is communicatedthrough a port 88, Figs. 24 and 25, into a cylinder bore 89, that isaxially aligned with and is of less diameter than the pump cylinder orsyrup chamber 62.

A cylinder headv90 atthe lower end of the bore 89 prevents the pressurein bore 89 from flowing into the syrup chamber 62 and a piston rod 91extending through such cylinder head is provided below such head in thesyrup chamber 62 with a syrup lifting head 92, which normally rests withits top below the top of the syrup inlet 63; and said head is submergedin syrup to the lever f of the fountain tray 57.

A pressure operated syrup pump-piston 93 is fixed-'to the rod 91`abovethe port 88 which opens into the bore 89, and a weight 91 is provided onpiston rod 91 so that normally the syrup piston 92 is submerged insyrup; and as the pressure in the bore 89 becomes sufficient, it raisesthe piston 93, rod 91, weight 91', and piston 92; and the syrup abovepiston 92 in chamber 62 is thus forced out through duct 65 and port 65and flows into chamber 64 and thence through hole 66, and tube 67 intothe mixing tube or outlet 94, which extends from the expansion chamber71 through a hole 95 in the rear of the casting 1, and delivers the uidsthrough the outlet spout 38 into the cup previously delivered to andresting on the lip 4a.

The tube 94 is so steeply aslant that the liquids dischar ed thereintowill flow out of the ficiently behind the front rim of the drip cup toallowany drops which may drip from4 the end of the spout to fall intothe drip cup and drain out through the drain 5 without smearing the lip4a or the rim b of the cup.

The pressure liquidl outlet valve-lock releasing arm 96 fixed by pin 96to the rod 91, is movable up and down by said rod 91 and is adapted tolift the outlet valve releasing rod 97, which is provided with anadjustable Steg) formed by nuts 97 on said rod 97.

id stop is normally spaced from the arm 96 as indicated in Fig. 2 sothat when the power piston 93 is operated by pressure from the chamber72, the arm 96 will operate with lost motion to lift the rod 97 at theend of a measuring stroke of the syrup pump piston 92. The rod 97 has acollar or tappet 97a which is adapted and arranged to lift the operatingarm 9 8 of the rocking valve lock which is pivoted at 99 to the casting2 adjacent the valve rod 69. Said rod 69 1s provided with a shoulder 100under which the lock limb 98 of the valve lock may be moved by thespring 101 when the valve rod 69 is elevated by cam 23 to cause thevalve 70 to close the outlet 71 as shown in Fig. 15. v

lVhen the arm 98 and its lock limb 98.are in Vloc-king position, asindicated in Fig. 15, the valve rod 69 and valve 70 are held topositively4 close the outlet 71; and when the arm 96 lifts the rod 97and its tappet 97d to the position indicated in Fig. a, the valve rod 69is free to be lowered.

The unlocking rod 97 is guided in the cover 56 and the guide '102 whichis stationary to the casting 5 5, and the spring 101 operates betweenthe guide 102 resting against the arm 98 and a washer 102 under thespring 101 to normally force the lock into locking position.' 103 is anuton the rod 69 to clamp a bracket 104 onto the set nut 104 on said rod69. Said bracket is slidable up and down on the rod 97 so'that when therod 97 is forced up by pressure on the piston 93 from chamber 72 thespring 105 on the unlocking rod 97 acts through the bracket 104 afterlock 98 is released to force down the valve rod 69, thus to open outlet71 from the pressure chamber and permit the liquid therein to How bygravity into the expansion chamber 71. The roller 69 is thus broughttorest on the cam wheel 23 and the parts remain in the position shown inFig. 150 until another operation'of the crank serves to turn the cam 23and a ain lift the rod 69, the valve and valve 4.

The moment the rod 69 is lowered, its head 103 is withdrawn from thevalve rod 73, thus allowing the valve 74 to close and remain closed andthe valve 70 to be opened by spring 105 and to remain open until anotheroperation of the cam wheel 23 has occurred, Whereupon the operation justdescribed will be repeated.

The adjustment ofthe set nuts 97 determines the lift of the syrup pistonand enables the operator to predetermme the amount of syrup to bedelivered at each operation of the machine.

This enables the operator to properly proportion the syrup to the waterso that syrup of various degrees of concentration may used. The chamber62 is of larger dimensions than the amount of syrup usually required forthe charge of carbonated water so that the regulation can be to eitherincrease or diminish the charge of syrup.

By experiment I have determined that when the liquid is heavily chargedwith gas, the actual liquid in the chamber 72 is so increased in bulk bythe presence of the liberated gas therein, that the float will be liftedby a less quantity of actual liquid in the chamber 72 than when thepressure in the suppl drum or tank 78 is lower, and as the heavil;7charged water produces a greater amount of foam than the lower chargedwater, consequently by this method of cutting oli the flow of chargedliquid into the chamber by the pressure in the chamber, the amount ofliquid and gas delivered to the cup along with the syrup and theresulting foam will in 'each instance fill the cup tothe pre determinedheight so that a full cup will be served at each operation.

The cylinder head 90 may be threaded into the power cylinder 89, theweight 91 is fixed to the piston rod 91 by set screw 91 and the arm 96is fixed to said rod 91 by set screw 96 so that by removing the casting55 from the member 2 the parts can be easily disassembled,

The piston 93 by which the pressure from the tank 78 and chamber 72 isapplied to pump a predetermined measure of the syrup and to release thevalves to close the supply Valve and open the outlet valve, is spacedabove the pressure port 88 so that there is always a gas pocket 93below' the piston 93 thus to cushion the' piston against the force ofthe liquid from the tank 78.

The-cover 56 is recessed at 56a so that the chamber 89 is open to theatmosphere above piston 93 to permit easy reciprocation of the piston.

Ratchet means are provided to prevent retraction of the dispensingmechanism after starting until completion of its cycle. The samecomprises wheel 23, and a ratchet wheel 106 integral therewith and afinger 107 pivoted at 108. Said finger is provided with a shoulder 109thatl engages the teeth of said ratchet and prevents said ratchet. andcam 23 from revolviner in a reverse direction. A Weight 111 mares thefinger 107 more positive in its engagement with said ratchet.

The pressure valve chamber 112 formed in the nipple 86 is supplied withefervesccnt liquid through a minute port 113 so as to cut down the flowof the pressure liquid on its way to the pressure chamber, and suchvalve chamber serves as an expansion chamber to allow the gas to expandon its Way to thev pressure chamber and to seat the pressure liquidinlet valve instantly when it is unlocked. i

The operation of the invention is as follows:

A coin of the required denomination is placed in the slot 12 and runsdown into the grooves 12 and seats in the seat 9a of the coin carrierand providing means for connecting the shafts 8 and 15, thus bridgingthe opening between the limbs of the coin carrier.

The crank 7 is then turned to the right in Fig. 14 and the coin engagesthe lug 14 and turns the sleeve 10, shaft 15 and gear 17, therebyturning the gear 18, its shaft 19, the gear 21 and its shaft 22, and,acting through the sprin 22a turns the shaft 22 and the cam whee 23.

The oscillation of the crank 7 is sufciently ample to turn the crank pin27 in the direction'of the arrows on and adjacent the cam wheel in Figs.10 and 15, until the crank pin has swung down and past a vertical, notshown, drawn from the axis 22 of the cam wheel, when the manuallytensioned spring 27 operates with a snap action to suddenly complete therevolution of the cam Wheel to drive the Dear 21 in the direction inwhich it was turned b the crank, thus completing the revolution of, saidgear 21 and the train of gears and shafts connected therewith.

When the cam wheel 23 has revolved to the top of the cam or tooth 23',the rod 69 has been lifted to such point that the shoulder 100 is abovethe tip of the loclr limb 98 of the locking rocker or support and thespring 101 acting on the arm 93 throws the top of the lock limb underthe shoulder 100, thus holding the outlet valve 7 0 in closed positionas shown in Fig. 17.

The snap action revolution of the gearv21 operates the gear 17, shaft19, gears 39 and 40, shaft 41, gears 42 and 43 and completes therevolution of the cup delivering wheels 31, so that when the cam 23comes to rest, a cup C has been delivered so that it hangs by its rim bon the lip lla.

When the cam is revolved from the normal position in which it is held bythe springs 27, the periphery of the cam lifts the roller 69, the rod 69and the valve 74 against the pressure of the pressure liquid in the pipe79, thus allowing the pressure liquid to liow through the slot 76 intothe chamber 72, while the outlet 71 from such chamber is closed by thelifted valve 70.

As the liquid rises in the pressure chamber and after the vent holes 84are closed by the float 80 the pressure in chamber 72 is communicatedthrough the port 88 into the bore 89 and lifts piston head 93 and thepump piston 92 which in turn lifts the syrup 1n the syrup chamber 62,thus forcing the syrup u through duct and through port 65', until acharge of syrup has been delivered to syrup outlet chamber 64 from whichit flows by gravity through the port 66 and pipe 67 into the conduit 94.

t the close of the upward movement of the piston 93 and its rod 91, thearm 96 is carried upward by the rod 91 end acting against the stop 97',lifts the rod 97 and collar 97a which lifts the arm 98 and rocks thevalve lk on its pivot 99 and this withdraws the lock limb 93 from underthe shoulder 100 which is normally supported by the lock limbv '3l-"heeervescent liquid2 from the supply tank 78 is normally so highly chargedwith gas that it is necessary to allow a. portion of the gas to escapefrom the pressure chamber in order to establish a sufficient charge ofliquid in the pressure chamber to afford requisite water for the drink,which is ordinarily in the proportions of about five ounces of water toone ounce of syrup, and therefore, I make provision in the form of thevent holes 84 to permit escape of some of the gas.

The inlet 63 into the fpump cylinder extends from the bottom o saidcylinder to a sufficient clearance above the top of the pump piston 92to allow theiip-thrust of the piston to cut off the inlet withsuflicient quantity of the liquid above the port to supply the maximumamount of syrup for a drink, and the upward travel of the piston beinglimited by the position of the stop formed by the nuts 97', the amountof syrup expelled from the pump cylinder and caused to overflow throughthe port 65 can be accurately determined by adjusting said nuts.

When the pressure below the power piston 93 is relieved by o ning/theoutlet valve 71 at the bottom of)e the preure chamber the piston rod 91and the pump piston hea 92 are lowered by gravity, and the weight 91assures completion of this operation. The piston head 92 is allowed todescend because the syrup which has flowed from the fountain into thespace underneath the pump piston, flows back toward fountain 57 duringthe descent of the pump iston head and re turns again to cover thepiston with the syrup flowing from the fountain to fill ump cylinder 62to the level f as shown in igs. 24, 25 and 26.

The charged water from pressure chamber 72 is emptied into expansionchamber 71 so that the water delivered from chamber 72 will be retardedbefore flowing into the conduit 94 until the gas pressure in chamber 72is relieved and the water permitted to flow by gravity from the chamber71'.

The liquids flowi down the conduit 94 are mixed therein an projectedover the drip cup into the cup C where they are finally mixed by theforce of the discharge; and any drip from the spout 38 falls verticallyinto the drip cup 5 so as to avoid smearing the drinking cup.

An advantage of my device is that the piston rod 91 when moved u wardlyby the pressure in the pressure cham r through the cylinder head intothe bore 89 will be thoroughly cleansed by the water from the chamber 72entering the bore 89, and thus remove any syrup that ma have adheredthereto and passed throng the cylinder head 90.

The pressure in bore 89 also exerts a force around the rod 91 at theopening in head 90 where said rod passes through t e head and tends toprevent the syrup from being pulled through such opening with the bore89.

l claim:

1. A drink vending machine comprising a conduit; means for supplying onecomponent of a drink for delivery to a cup; means for supplying anothercomponent of the drink for delivery to the cup; a shaft and connectionfor causing the operation of both of said supplying means to produce amixed drink, and a spring connected externall to the shaft and arrangedso that as the s aft is revolved part way the spring is going past adead center; and cup delivering means operable by the shaft after thespring passes the dead center to deliver a cup to receive the drink.

2. The combination with a chamber provided with an outlet and adapted toreceive liquid under pressure, a pressure liquid inlet va ve to deliverpressure liquid to said chamber, means to hold the inlet valve closed,an outlet valve adapted to close the outlet of said chamber, meansoperable with said outlet valve to open the inlet valve, a cam wheeladapted to cause the outlet valve to close and to cause the inlet valveto open; and means set in motion by pressure from the pressure chamberto close the pressure liquid inlet valve, and to open the outlet valveafter the inlet valve has been closed.

3. In a drink vendin machine of the character set forth, the com inationwith a pump cylinder having an inlet at the bottom and an outlet at thetop, of a pum piston head having a thickness less than t e heighth ofthe inlet, a fountain to supply the pump cylinder with liquid to a levelbelow the level of the outlet, and means to raise the pump piston headto discharge liquid from the ump cylinder above the inlet, Said inletein arranged to allow liquid to by-pass at the inlet so that the pistonmay return t0 normal standing position.

4. A drink vending machine provided with an outlet; means to place acui.A to receive liquid discharged from the lvutlet; means for supplyingone component of a drink to the outlet; means for supplying anothercomponent of the drink to the outlet; revolvable means and connectionsfor causing the operation of both of said supplying means to produce amixed drink; a spring connected eccentrically to the revolvable meansand adapted to receive tension during a portion of the revolution of therevolvable means and to be moved ast dead-center by said revolvablemeans an to. operate said revolvable means to complete a revolutionthereof with snap action upon passin such dead-center, and meansconnecting tlie revolvable means with the cup placing means so that thecup will be placed in time to re'- ceive the discharge.

5. A drink vending machine provided with an outlet; means adapted tosupply an eiervescent component of a drink to the outlet; pump meansadapted to supply another component of the drink to the outlet; apressure chamber; an inlet valve to such c amber; an outlet valve fromthe chamber; a revolvable means provided with a cam and connected toclose the outlet valve and open the inlet valve; a spring connectedeccentrically to the revolvable means and adapted to receive tensionduring a portion of the revolution of the revolvable means, and adaptedto be moved ast dead-center by said revolvable means an to operate saidrevolvable means to complete the revolution thereof and of said cam uponpassing such dead-center; said cam being constructed and arranged toclose the outlet valve duri the spring tensionin .portion of its revoution and open the in et valve during the spring retracting portion 'ofits revolution; means to retain the valves in the positions thus givensaid valves until the components of the drink are measured; and meansoperable b pressure of the efervescent component of the drink to closethe inlet valve and open the outlet valve.

6. A drink vending machine providedl with an outlet; means adapted tosupply one component of a drink to the outlet; means adapted to supplyanother component of the drink to the outlet, revolvable means providedwith a cam; a normally open outlet valve adapted to be closed by the camto allow temporary accumulation of one of said components preparatory todischarging the same; a spring connected eccentrically to the revolvablemeans and adapted to receive tension during a portion` of the revolutionof the revolvable means and adapted to be moved past deadcenter by saidrevolvable means and to operate said revolvable means to complete therevolution thereof and of said cam upon passing dead-center, said cambeing constructed and arranged to allow said outlet valve to be openedwhen the cam is brought to rest by said spring and adapted to close theoutlet valve durin the spring tensioning movement thereo 7. Thecombination with an outlet, of means adapted to deliver to the outlet adrink component; a pressure chamber having an inlet and an outlet;means' com osing a pressure closed inlet valve, to supp y a liquid underpressure to said chamber; a normallv open outlet valve for said chamber;revollvable means to close the outlet valve;

l and a spring connected eccentrically to said 8. In a liquid dispensingmachine the combination with a pressure liquid tank, of a pressurechamber provided with an outlet at the bottom; a valve for the outlet; avalve between the tank and chamber; a pump operable by pressure from thechamber; means for closing the outlet valve; means for opening the valvebetween the tank and chamber and means set into operation by pressurefrom the chamber to close the valve between the tank and chamber and toopen the outlet valve.

9. In a liquid dispensing machine, the combination with a pump cylinder,a power cylinder, and a pressure chamber communicating with the powercylinder; of means to supply to the pressure chamber, effervescentliquid under pressure; a pump piston head in the pump cylinder; means tosupply liquid to the pump cylinder above the pump piston head; a powerpiston head adapted and arranged in the power cylinder to beoperated bypressure from the pressure chamber` and connected to operate the pumppiston head to expel liquid from the pump cylinder; means operable bythe power piston head to release liquid from the pressure chamber: andmeans to conduct the liquid to a receptacle.

10. The combination with a pump piston. of a pump cylinder having anoutlet at the top and an inlet at the bottom extending above the top ofthe piston when at rest at the bottom; a power cylinder above the pumpcylinder and open at the top; a piston rod connected to the pump pist-onand extending through and above the power cylinder: a piston head on thepump rod in the power cylinder; a pressure chamber having a vent. anoutlet, and an inlet; means to supply efervescent liquid through theinlet under pressure to the pressure chamber; a valve to close theoutlet; a valve to close the inlet; a floatin the pressure chamber;means operable b v the float to close the vent; a rod connected tooperate the outlet valve and adapted to open the inlet valve when theoutlet valve is closed a cam adapted to operate said rod by a portion ofthe revolution of the cam; av rocking valve lock adapted to support therod with the outlet valve closed and the inlet valve open While the camis withdrawn from said rod: and means operable by the piston rod at theend of its upstroke to operate the valve lock and Withdraw the lock fromthe cam operated rod; and spring means to return the outlet valve toopen position and the inlet valve to closed position when the valve lockhas been operated by the piston rod operated means.

11. A liquid dispensing machine provided with a preure chamber having avent at the top, an outlet at the bottom a port between the outlet andthe vent, and an inlet valve adapted and arranged to supplyeil'ervescent liquid under preure to the pressure cham;

a pump piston head in said pump cylinder adapted to normally rest withits top below the level of the top of the pump cylinder inlet; a pistonrod adapted to operate the pum piston and extendin outside the pump cyinder; a piston he on the piston rod; a power cyllnder in which thepiston head is adapted to operate; said port bein below the piston headand communicating tween the power cylinder and the pressure chamber;means for closing the outlet from the pressure chamber, and opening theinlet valve to the pressure chamber thereby to admit pressure operablethrough the port of said pressure chamber to actuate the power piston;means to hold the inlet valve open; means to hold the outlet valveclosed; means connected to the power piston to cause the inlet valve toclose when the power piston is operated; and means to open the outletfrom the pressure chamber after the inlet valve has closed.

12. A liquid dispensing machine comprisirg a pressure chamber adapted toreceive e ervescent liquid under pressure and pro-v vided at the bottomwith an outlet and at the top with a vent; a tank adapted to deliverelervescent liquid to said chamber; a valve between said tank and saidchamber; a pump provided with an inlet at one level and an outlet at ahigher level and adapted to hold quiescent liquid; a fountain to supplysuch liquid to the pump; means adapted to apply pressure from thechamber to operate the pump; a float in the pressure chamber providedwith a valve to close the vent in the top of said pressure chamber whenthe oat is lifted; and means connected with the pump for eecting theclosing of the valve between the tank and the pressure chamber.

13. In a machine for'delivering liquid under pressure; a pressurechamber having an inlet and an outlet; a valve to close the outlet; avalve to close the inlet; means to open the inlet valve when the outletvalve is closed mechanism to close the outlet valve; mechanism to closethe inlet valve; a wheel provided with a cam; means operable by the camto operate both of said mechanisms; resilient means to yieldingly holdthe cam wheel in non-operative position allowing the inlet valve toclose` and the outlet valve to open; crank means to revolve the cam partway; and means to allow the crank to return to initial position and toallow the cam to complete its revolution.

14. A machine for delivering liquid u nder pressure comprising apressure chamber having an inlet and an outlet; a valve to close theoutlet; a valve to close the inlet; a spring to normally hold the inletvalve closed; means to normally hold the outlet valve' open; means toclose the' outlet valve and open the inlet valve; a cam wheel to operatethe, outlet valve closing and the inlet valve opening meanssuccessively, and a spring to return the cam to normal operativeposition.

15. A machine for mixing a li uid under pressure with another liquid, wich comprises a pressure chamber having a vent, an inlet and an outlet;a. syrup chamber having an inlet and an outlet; means connected to thepressure chamber to deliver pressure liquid thereto; means connected tothe syrup chamber to deliver syrup thereto; a piston to expel syrup fromthe syrup chamber, means to apply pressure from the pressure chamber tooperate the piston to expel the syrup; means to close the outlet valvefrom said pressure chamber and to open the inletvalvetothe pressurechamber; means for closing the vent to produce pressure to operate saidVpiston; means to close the inlet valve to the ressure chamber and openthe outlet valve rom the ressure chamber; means to conduct liquid romthe syrup chamber to a place of mixture; and means to conduct liquidfrom the pressure chamber to said place of mixture to mix the twoliquids together.

16. In a machine for delivering liquid under pressure; a liquid pressurechamber having an inlet and an outlet; a valve to close the outlet; avalve to close the inlet; revolv.

able means to close the outlet valve and open the inlet valve during aportion of the revolution of the revolvable means; means foi locking theinlet valve open; means actuated by the pressure of the liquid in thepressure chamber to release the valve locking means; and automatic meansto close the inlet valve and stop the'low of liquid into the pressurechamber, and also to open the outlet valve when the valve locking meansare released.

17 The combination with a cup holder, of means to deliver liquid to vacup in the cup holder, a pressure chamber having an inlet and alsohaving an outlet connected to the liquid delivery means; a valve to openthe inlet and a valve to close the outlet from the pressure chamber; asyrup chamber filled by gravity a piston to expel syrup from the syrupchamber; means to deliver an eervescent liquid to said pressure chamber;means operable by gas pressure from the effervescent liquid in thepressure chamber after measuring said eiervescent liquid to operate thepiston to expel syrup into the delivery means; manually operated meansto start delivering a cup to the cup holder; and means connecting thevalve operating mechanism to the cup delivering means to complete theplacing of a cup to receive liquid from the syrup chamber and from thepressure chamber when the pressure outlet valve is opened.

18. A machine adapted to discharge a measured portion of liquid underpressure; comprising a chamber provided with an inlet by the pressure insaid pressure chamber,and operative means connecting said rod and saidlocking means, to release said locking means as the rod is actuated.

27. A measuring and dispensing mechanism comprising a fitting; a tankcontaining liquid under pressure connected to said fitting; a valveclosing said fitting; a chamber connected to said fitting and having avent and an outlet; manually actuated means for closing said outlet andunseating said valve; means for locking said manually actuated means;means closing said vent after the chamber contains a predeterminedamount of liquid; a power cylinder connected by a passage with saidchamber; arod in said cylinder; a piston on said rod adapted to be actedon by the pressure in said chamber; operative means connecting said rodand said locking means to release said locking means as the rod israised; a pump cylinder; a supply fountain connected to supply syrup tosaid pump cylinder; and a piston in said pump cylinder connected to saidrod whereby the syrup is discharged.

28. In a vending machine, a body having a recess therein, and a wastespout extending down from said recess, and into which used cups may bethrown; said body having a vertical passage opening down into saidrecess; cup dispensing means mounted on said body; mean-s to actuatesaid cup dispensing means; a lip in said recess adapted to receive a cupfrom said cup dispensing means; liquid dispensing means; a tubeextending from said liquid dispensing means into said vertical passagead] acent and above said lip, and operative means joining the cupdispensing actuating means andthe liquid dispensing means.

29. In a vending machine, a measuring and dispensing mechanismcomprising a fitting;

lzizi a tank containing liquid under pressure and connected to saidfitting; a valve closing said fitting; manually tensioned springactuated means toI unseat said valve; said mechanism having a chamberprovided with a vent and connected to said tting; means closing saidvent after said chamber contains a predetermined amount of liquid; meansactuated by the pressure in the chamber to close said valve; saidmechanism including a pump cylinder; a fountain adapted to supply syrupby gravity to said pump cylinder; means actuated by the pressure in thepressure cham ber to discharge syrup from said cylinder; a cupdispensing device; and means operable by said manually tensioned springactuated means to operate the cup dispensing device.

30. In a drink vending machine having a cup support and a spoutterminating a short distance from the rim of said cup at one sidethereof, said spout being arranged to discharge liquid with considerablevelocity across and over the rim of a cup on the support; a drip cuparranged beneath the end of the spout to receive drip from the spout anddischarge it away from the cup.

31. In a machine of the character set forth; a syrup cylinder having aninlet at the bottom and opening at the top through a duct leading up toan outlet; a pump piston adapted to come to rest with its top below thetop of the inlet; and means to supply liquid to the cylinder to a normallevel in the duct below the outlet so that an upward movement of thepiston will expel liquid through the duct.

32. In a machine of the character set forth; a syrup cylinder having aninlet at the bottom and opening at thc top through a duct leading up toan outlet; a. pump piston adapted to come to rest with its top below thetop of the inlet; means to supply liquid to the cylinder to a normallevel in the duct below the outlet so that an upward movement of thepiston will expel liquid through the duct; and adjustable means to limitthe upward stroke of thc piston to regulate the amount of liquidexpelled by the piston.

33. A drink vending machine comprising valved means for supplying aneifervescent liquid component of a drink under pressure;

manual means for starting into operation- .said efiervescent liquidsupplying means; means operated by gas from the eiervescent liquid afterthe eiiervescent liquid component of the drink has been measured tosupply another component of the drink; and means operated by gas fromthe eifervescent liquid to permit and cause discharge of saidcomponents.

In testimony whereof;.I have hereunto set my hand at Los Angeles,California, this 17th day of October, 1925.

FRANK A. MADDEN.

